Doctor profile · Federal record
Dr. Alan Tseng, MD, PHD
Hematology (Internal Medicine) Physician (CMS: Hematology) · Northampton, MA
- NPI 1518420520
- Accepts Medicare
- 8 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
30 Locust St
Northampton, MA 010602052
(413) 582-2900
Credentials & registration
- NPI registered
- April 2019 — 7 yrs on file
- Profile last updated
- August 1, 2025
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207RH0000X — NUCC code
- State license (1)
- Massachusetts #1024260
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518420520. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$882
Transactions
14
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 6 | $297.08 | |
| Pfizer INC. | 1 | $124.99 | |
| Genzyme Corporation | 1 | $124.88 | |
| Sobi, INC | 1 | $114.00 | |
| Abbvie INC. | 1 | $99.99 | |
| Lilly USA, LLC | 1 | $46.70 | |
| Astellas Pharma US INC | 1 | $24.89 | |
| Blueprint Medicines Corporation | 1 | $24.60 | |
| Novartis Pharmaceuticals Corporation | 1 | $24.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
38
Patients
0
Total drug cost
$203,994
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 14 | 0 | $181 |
| Imbruvica (Ibrutinib) | Brand | 12 | 0 | $203,571 |
| Ondansetron Hcl | Generic | 12 | 0 | $241 |
Hospital affiliations
Frequently asked questions
What is Dr. Alan Tseng's medical specialty?
Dr. Alan Tseng practices Hematology (Internal Medicine) Physician in Northampton, MA.
Where does Dr. Alan Tseng practice?
Dr. Alan Tseng practices at 30 Locust St, Northampton, MA 010602052. Office phone: 4135822900.
What is Dr. Alan Tseng's NPI?
Dr. Alan Tseng's National Provider Identifier (NPI) is 1518420520, issued by NPPES.
Does Dr. Alan Tseng accept Medicare assignment?
Yes. Dr. Alan Tseng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.